GB1253347A - Antiskid control system - Google Patents

Antiskid control system

Info

Publication number
GB1253347A
GB1253347A GB36701/70D GB3670170D GB1253347A GB 1253347 A GB1253347 A GB 1253347A GB 36701/70 D GB36701/70 D GB 36701/70D GB 3670170 D GB3670170 D GB 3670170D GB 1253347 A GB1253347 A GB 1253347A
Authority
GB
United Kingdom
Prior art keywords
valves
chambers
cylinder
pressure
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB36701/70D
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19691940247 external-priority patent/DE1940247C/en
Priority claimed from DE19691940246 external-priority patent/DE1940246C3/en
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of GB1253347A publication Critical patent/GB1253347A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4225—Debooster systems having a fluid actuated expansion unit
    • B60T8/4233—Debooster systems having a fluid actuated expansion unit with brake pressure relief by introducing fluid pressure into the expansion unit

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

1,253,347. Antiskid braking systems. ALFRED TEVES G.m.b.H. 29 July, 1970 [7 Aug., 1969 (2)], No. 36701/70. Heading F2F. An antiskid control system in which the pressure fluid in a section of brake line permanently connected to a wheel cylinder can expand or be compressed in dependence on the movement of a piston responsive to a control variable determined by a sensor, includes a piston 5<SP>1</SP> or 5<SP>11</SP> comprising at least two parts 6<SP>1</SP>, 7<SP>1</SP> or 6<SP>11</SP>, 711 sealingly guided in a cylinder and axially displaceable against a return force such as a spring 18<SP>1</SP>, 18<SP>11</SP> one piston part being axially displaceable independently of the other parts and the cylinder being divided into annular chambers 10<SP>1</SP>, 10<SP>11</SP>, 11<SP>1</SP>, 11<SP>11</SP>, 12<SP>1</SP>, 12<SP>11</SP> each limited in one direction by a surface of a piston part such as the surface 13<SP>1</SP> or 131<SP>1</SP>. During braking fluid is fed to wheel cylinders 1<SP>1</SP>, 1<SP>11</SP>, 2<SP>1</SP>, 2<SP>11</SP> from a master cylinder via pipes 8, 9 and valves 3<SP>1</SP>, 3<SP>11</SP>, 4<SP>1</SP>, 4<SP>11</SP>, valves 14<SP>1</SP>, 14<SP>11</SP> in a return line 15 being open, and pressure fluid is fed to chambers 10<SP>1</SP>, 11<SP>11</SP>, 11<SP>1</SP>, 11<SP>11</SP>. An hydraulic accumulator (not shown) is connectible to chambers 12<SP>1</SP>, 12<SP>11</SP> via a line 17 and solenoid valves 16<SP>1</SP>, 16<SP>11</SP>. On a tendency of a wheel to lock valves 14<SP>1</SP>, 14<SP>11</SP> are closed and valves 16<SP>1</SP>, 16<SP>11</SP> opened so that the pressure closes valves 3<SP>1</SP>, 3<SP>11</SP>, 4<SP>1</SP>, 4<SP>11</SP> to cut off the flow from master cylinder to wheel cylinders, the pressure also causing the piston part having a surface 13<SP>1</SP>, 13<SP>11</SP> to move against the spring 18<SP>1</SP>, 18<SP>11</SP> and allow the other parts to move to increase the volume of chambers 10<SP>1</SP>, 10<SP>11</SP>, 11<SP>1</SP>, 11<SP>11</SP> and release the brake pressure.
GB36701/70D 1969-08-07 1970-07-29 Antiskid control system Expired GB1253347A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691940247 DE1940247C (en) 1969-08-07 Anti-blocking control system for vehicles
DE19691940246 DE1940246C3 (en) 1969-08-07 1969-08-07 Isolation valve for an anti-lock control system

Publications (1)

Publication Number Publication Date
GB1253347A true GB1253347A (en) 1971-11-10

Family

ID=25757770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36701/70D Expired GB1253347A (en) 1969-08-07 1970-07-29 Antiskid control system

Country Status (4)

Country Link
US (1) US3682514A (en)
JP (1) JPS4940913B1 (en)
FR (1) FR2057039B1 (en)
GB (1) GB1253347A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1349355A (en) * 1970-09-26 1974-04-03 Dunlop Holdings Ltd Valve assemblies
DE2048802C3 (en) * 1970-10-05 1973-10-25 Werner Karl-Heinz 8000 Muenchen Fuchs Anti-lock control system for vehicles, especially motor vehicles, with a sensor controlling a pulsing device
GB1341338A (en) * 1971-06-14 1973-12-19 Fiat Spa Anti-skid braking systems
DE2156307C2 (en) * 1971-11-12 1982-10-21 Alfred Teves Gmbh, 6000 Frankfurt Anti-lock device for automobiles
CH548303A (en) * 1971-12-23 1974-04-30 Bosch Gmbh Robert BRAKE-LOCK PROTECTION SYSTEM FOR A COMPRESSED AIR BRAKE SYSTEM.
US3741611A (en) * 1972-04-27 1973-06-26 Itt Pressure medium control arrangement for an antiskid system
GB1440065A (en) * 1972-09-26 1976-06-23 Girling Ltd Actuator assemblies for vehicle brakes
US3738713A (en) * 1972-06-08 1973-06-12 Fiat Spa Vehicle anti-skid braking apparatus
US5279401A (en) * 1988-11-08 1994-01-18 Uni-Cardan Ag Method for controlling friction clutches or brakes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243526B (en) * 1960-05-24 1967-06-29 Gordon Winston Yarber Brake pressure control system for the brakes of a vehicle wheel, in particular a chassis wheel of an aircraft
DE1655449B2 (en) * 1967-09-26 1974-01-03 Alfred Teves Gmbh, 6000 Frankfurt Device for preventing the locking of a vehicle wheel with a hydraulic brake system
GB1227950A (en) * 1967-10-31 1971-04-15
US3514161A (en) * 1968-06-11 1970-05-26 Goodyear Tire & Rubber Brake pressure control valve
US3554612A (en) * 1968-08-21 1971-01-12 Gen Motors Corp Antilock brake control
US3556609A (en) * 1968-09-30 1971-01-19 Bendix Corp Hydraulic pressure modulator
US3545817A (en) * 1969-01-21 1970-12-08 Gordon W Yarber Brake control mechanism

Also Published As

Publication number Publication date
US3682514A (en) 1972-08-08
JPS4940913B1 (en) 1974-11-06
FR2057039B1 (en) 1975-01-10
FR2057039A1 (en) 1971-05-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee